The XT1NU4020AFF000XXX: Four poles means it switches all three phases plus neutral in a single unit — common for three-phase panelboards where you need a switched neutral for isolation. That's another SKU I don't need to carry separately if the design calls for it.
ABB XT1NU4020AFF000XXX XT1N 125 TMF, 4-Pole Molded Case Swit
MPNXT1NU4020AFF000XXX
ABB, XT1N series, molded case switch, order code XT1NU4020AFF000XXX, 4 poles, TMF trip unit.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Poles | 4 |
Product details
Frequently asked questions
How do I get current pricing and availability for XT1NU4020AFF000XXX?
This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote to confirm current pricing and availability at the time of your order.
What is XT1NU4020AFF000XXX's listed poles (4) on this component line?
The XT1NU4020AFF000XXX is a 4-pole molded case switch, switching all three phases and the neutral conductor in one assembly.
MPN
XT1NU4020AFF000XXX